| 摘要 |
PURPOSE:To improve work efficiency by simplifying and ensuring the removal of inductive magnetic anisotropic by a method wherein an amorphous magnetic alloy thin film strip is performed quenching continuously and rapidly, after rapid heating more than Curie temperature Tc. CONSTITUTION:An amorphous magnetic alloy thin film strip 1 is moved from a suppling roll 2 to an winding roll 3. On the way of moving, liquid 5 is accommodated and a tub 7 is installed which is possessed of heating means 6 to heat this liquid 5 at high temperature, and at side of the latter part, a tub 10 accommodating a cooling liquid 9 is installed separated by a heat insulator 8. An alloy thin film strip 1 passes, by means of guide rollers 4, heating liquid 5 inside the tub 7, then through cooling liquid 9 inside the tub 10. As the heating liquid 5, for example, NaCl molten-salt is used and pure water is used as the cooling liquid. The quenching speed is faster than the generation of the inductive magnetic anisotropic in the alloy thin film strip 1 during cooling. In such a manner, soft magnetic characteristics, especially permeability in low frequency region, is improved. |
